Packaging bag with steam releasing function

A packaging bag and steam technology, applied in the field of packaging bags, can solve problems such as microwave ovens with difficult contents, and achieve the effect of high degree of freedom

Active Publication Date: 2009-10-21
TOPPAN PRINTING CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The heat-sealed part of the film of the packaging bag is in an easily peelable state to remove steam, so it is advantageous in terms of manufacturing because it does not use other materials. However, even if this packaging bag is used, if the condition after heating , since the scattering of the contents occurs in the easy-peelable area provided in a part of the heat-sealed portion of the packaging bag, it is difficult to say that the scattering of the contents in all states can be avoided, and the contamination inside the microwave oven can be avoided.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Packaging bag with steam releasing function
  • Packaging bag with steam releasing function
  • Packaging bag with steam releasing function

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0067] As the packaging bag 1 according to the first embodiment of the present invention, the main film 2 on the outside and the main film 3 on the back side are laminated respectively as laminated films. figure 1 As shown in (b), the heat-adhesive sealant layers 2 s and 3 s formed by laminating on the laminated surface thereof heat-weld the periphery of the end portion by heat sealing to form the bottom seal portion 4 and the side seal portions 5 on both sides. , 5, so that it can accommodate the contents A such as solid.

[0068] On the above-mentioned outer main body film 2, the main body film 2 on the outer side is first folded back toward the bottom sealing part 4 side on the bottom sealing part 4 side and parallel to the bottom sealing part 4 throughout the entire transverse width of the bag, and then the folded The main body film 2 folded from the groove end (valley fold り end) 6 to the bottom seal portion 4 side is bent parallel to the bottom seal portion 4 from the p...

no. 2 approach

[0103] Figure 6 ~ Figure 9 The second embodiment of the present invention is shown.

[0104] In this example, the upper edge portion of the folded top end 7 along the folded-in portion 8 is heat-sealed over the width direction of the bag to form the airtight closure portion 15 . And, in the above-mentioned sealed closing part 15, there are three non-sealed parts 23 composed of an non-sealed area connected to the folded top end 7 on one side and surrounded by the sealed area on three sides, and the above-mentioned steam removal port 11 is located on the non-sealed part 23 . The steam removal port 11 is formed by integrally cutting the inner panel surface 9 , the easy-peeling tape 12 , and the outer panel surface 10 of the non-sealed portion 23 .

[0105] The above-mentioned sealing area is a part of the sealing and closing part 15 where the easy-peeling tape 12 is located between the inner panel surface 9 and the outer panel surface 10 as described above and is integrally he...

no. 3 approach

[0129] Figure 10 shows the third embodiment. In this embodiment, at the center of the tuck-in portion 8 , a seal closing portion 15 is formed in connection with the tuck-in tip 7 , and is not connected to the side seal portions 5 on both sides of the tuck-in portion 8 via an unsealed portion 27 . In addition, the above-mentioned sealed closing portion 15 has a non-sealed portion 23 connected to the folded tip 7, and the non-sealed portion 23 is formed with a notched steam removal port 11. Furthermore, on the lower side of the airtight closing part 15, the lower side is made into the inclined lower side 28 left and right.

[0130]Furthermore, as shown in the figure, an extended seal portion 29 extending toward the center of the bag is provided on the side seal portion 5 opposite to the bottom seal portion 4 at a position close to the folded portion 8 . Since the extended sealing portion 29 is provided in this way, when the package obtained from the packaging bag 1 is heated ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The object of the present invention is to provide a packaging bag with a degassing function and a packaging body using the same, which can release the internal pressure of the packaging body without polluting the inside of the bag even if it is heated and cooked in a microwave oven. Therefore, when making the inner and outer two main body films (2, 3) with the sealant layer (2s, 3s) face each other with the sealant layer as the inner side, and have the side seal part (5), the bottom seal part (4) And in the packaging bag (1) that constitutes, the main body film (2) of the outside spreads over the whole lateral width of the bag, and is bent parallel to the bottom seal portion near the bottom seal portion (4) to form a fold-in portion (8). The entry part (8) is pierced with a steam removal port (11), and the inside of the fold-in part (8) is equipped with an easy-peel tape (12) covering the steam removal port (11), extending parallel to the fold-in part (8). The bags are configured according to their lateral width, and are heat-sealed.

Description

technical field [0001] The present invention relates to a packaging bag for storing food, and more particularly to a packaging bag having a steam removal function of opening a steam removal port with the force of generated steam when heated by a heating mechanism such as a microwave oven, and a package using the same. Background technique [0002] Conventionally, packaged foods filled with cooked or half-cooked foods in packaging bags made of heat-resistant plastic films and cooked by heating in a microwave oven before consumption have been widely sold. [0003] If such packaged food for heating and cooking is heated in a microwave oven as it is without opening, the internal pressure may rise due to the steam generated from the food during heating, which may cause the packaging bag to rupture, the contents to scatter, and the inside of the microwave oven to be polluted. . [0004] Therefore, before heating in a microwave oven, open a small ventilation hole on the packaging ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B65D81/34B65D33/01
Inventor 三宅英信盐崎浩一中村行宏示野郁乃辻井笃浜田佳代子河合广文泽田清志荒木教之后藤雅士
Owner TOPPAN PRINTING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap